Plus there's the electronic opening mechanisms that fail in the event of a fire. This is on most Teslas iirc. Even if the doors are intact, you're stuck.
There's ways to open them, but good luck with this shit when you're concussed from an accident, and sat in a burning vehicle.
https://www.tesla.com/ownersmanual/modely/en_us/GUID-AAD769C7-88A3-4695-987E-0E00025F64E0.html